Distribution of Xylella fastidiosa in oaks in Florida and its association with growth decline in Quercus laevis

被引:23
作者
Barnard, EL [1 ]
Ash, EC
Hopkins, DL
McGovern, RJ
机构
[1] Florida Div Forestry, Forest Hlth Sect, Gainesville, FL 32614 USA
[2] Univ Florida, Cent Florida REC, Leesburg, FL 34748 USA
[3] Univ Florida, Gulf Coast Res & Educ Ctr, Bradenton, FL 34203 USA
关键词
leaf scorch; oak decline; Quercus spp;
D O I
10.1094/PDIS.1998.82.5.569
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
A survey of more than 200 trees has documented the widespread occurrence of Xy[ella fastidiosa in Florida oak populations. The pathogen was detected readily via enzyme-linked immunosorbent assay in oaks exhibiting decline or leaf scorch symptoms and was infrequently detected in asymptomatic trees. It was also associated with reduced growth in Quercus laevis as measured by current-year shoot length. The occurrence of X. fastidiosa in Q. laevis and the evidence for its occurrence in Q. incana represent first reports for these oak hosts. The role of X. fastidiosa in oak decline scenarios deserves further attention.
引用
收藏
页码:569 / 572
页数:4
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